Pension Plans - Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets (Detail) - Pension Plan - USD ($) $ in Millions	Dec. 30, 2023	Dec. 31, 2022
Pension plans with accumulated benefit obligations in excess of plan assets:
Accumulated benefit obligation	$ 103.3	$ 94.9
Fair value of plan assets	18.4	15.1
Pension plans with projected benefit obligations in excess of plans assets:
Projected benefit obligation	106.9	98.6
Fair value of plan assets	$ 18.4	$ 15.1

Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets.

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- Definition

Amount of projected benefit obligation for defined benefit pension plan with projected benefit obligation in excess of plan assets.

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- Definition

Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480482/715-20-55-17

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-3

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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

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